Year	Number
1996	68.8442230224609
1998	70
2000	70.1492538452148
2002	69.651741027832
2003	66.1691513061523
2004	62.019229888916
2005	60.7655487060547
2006	60.7655487060547
2007	58.3732070922852
2008	61.0576934814453
2009	63.0331764221191
2010	62.0853080749512
2011	64.7887344360352
2012	66.6666641235352
2013	69.0140838623047
2014	74.5192337036133
2015	71.4285736083984
2016	77.6190490722656
2017	76.1904754638672
2018	76.1904754638672
2019	77.6190490722656
2020	77.6190490722656
2021	76.6666641235352
2022	78.7735824584961